//手机验证
const isMoile = mobile => {
  let re = /^1[3456789]\d{9}$/;
  return re.test(mobile);
}

//隐藏电话号码中间4位
const hideMobile = mobile => {
  return mobile.substring(0, 3) + "****" + mobile.substring(7);
}

//是否数值
const isNumeric = val => {
  return !isNaN(parseFloat(value)) && isFinite(value);
}

//必填验证
const isNullOrEmpty = str => {
  if (str) {
    str = str.toString().replace(/^\s+|\s+$/g, '');
    if (str == "null" || str == "") {
      return true;
    } else {
      return false;
    }
  } else {
    return true;
  }
}

//时间格式
const formatDate = (dtObj, fmt) => {
  if (typeof dtObj === "string") {
    if (dtObj.length > 19) {
      dtObj = dtObj.substring(0, 19)
    }
    dtObj = dtObj.replace('T', ' ').replace(/-/g, '/'); //ios不支持yyyy-MM-dd
    var ms = Date.parse(dtObj);
    dtObj = new Date(ms);
  }
  let o = {
    "M+": dtObj.getMonth() + 1, //月份 
    "d+": dtObj.getDate(), //日 
    "h+": dtObj.getHours() % 12 == 0 ? 12 : dtObj.getHours() % 12, //12进制小时 
    "H+": dtObj.getHours(), //24进制小时 
    "m+": dtObj.getMinutes(), //分 
    "s+": dtObj.getSeconds(), //秒 
    "q+": Math.floor((dtObj.getMonth() + 3) / 3), //季度 
    "S": dtObj.getMilliseconds() //毫秒 
  };
  if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (dtObj.getFullYear() + "").substr(4 - RegExp.$1.length));
  for (var k in o)
    if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
  return fmt;
}

/**
 * 计算总页数
 */
const evalPageCount = (recordCount, pageSize) => {
  let pageCount = 0;
  if (recordCount > 0) {
    pageCount = (recordCount % pageSize) == 0 ? (recordCount / pageSize) : parseInt(recordCount / pageSize + 1);
  }
  return pageCount;
}

//md5加密
const md5 = n => {
  function t(n, t) {
    var r = (65535 & n) + (65535 & t),
      e = (n >> 16) + (t >> 16) + (r >> 16);
    return e << 16 | 65535 & r
  }

  function r(n, t) {
    return n << t | n >>> 32 - t
  }

  function e(n, e, o, u, c, f) {
    return t(r(t(t(e, n), t(u, f)), c), o)
  }

  function o(n, t, r, o, u, c, f) {
    return e(t & r | ~t & o, n, t, u, c, f)
  }

  function u(n, t, r, o, u, c, f) {
    return e(t & o | r & ~o, n, t, u, c, f)
  }

  function c(n, t, r, o, u, c, f) {
    return e(t ^ r ^ o, n, t, u, c, f)
  }

  function f(n, t, r, o, u, c, f) {
    return e(r ^ (t | ~o), n, t, u, c, f)
  }

  function i(n, r) {
    n[r >> 5] |= 128 << r % 32, n[(r + 64 >>> 9 << 4) + 14] = r;
    var e, i, a, h, d, l = 1732584193,
      g = -271733879,
      v = -1732584194,
      m = 271733878;
    for (e = 0; e < n.length; e += 16) i = l, a = g, h = v, d = m, l = o(l, g, v, m, n[e], 7, -680876936), m = o(m, l, g, v, n[e + 1], 12, -389564586), v = o(v, m, l, g, n[e + 2], 17, 606105819), g = o(g, v, m, l, n[e + 3], 22, -1044525330), l = o(l, g, v, m, n[e + 4], 7, -176418897), m = o(m, l, g, v, n[e + 5], 12, 1200080426), v = o(v, m, l, g, n[e + 6], 17, -1473231341), g = o(g, v, m, l, n[e + 7], 22, -45705983), l = o(l, g, v, m, n[e + 8], 7, 1770035416), m = o(m, l, g, v, n[e + 9], 12, -1958414417), v = o(v, m, l, g, n[e + 10], 17, -42063), g = o(g, v, m, l, n[e + 11], 22, -1990404162), l = o(l, g, v, m, n[e + 12], 7, 1804603682), m = o(m, l, g, v, n[e + 13], 12, -40341101), v = o(v, m, l, g, n[e + 14], 17, -1502002290), g = o(g, v, m, l, n[e + 15], 22, 1236535329), l = u(l, g, v, m, n[e + 1], 5, -165796510), m = u(m, l, g, v, n[e + 6], 9, -1069501632), v = u(v, m, l, g, n[e + 11], 14, 643717713), g = u(g, v, m, l, n[e], 20, -373897302), l = u(l, g, v, m, n[e + 5], 5, -701558691), m = u(m, l, g, v, n[e + 10], 9, 38016083), v = u(v, m, l, g, n[e + 15], 14, -660478335), g = u(g, v, m, l, n[e + 4], 20, -405537848), l = u(l, g, v, m, n[e + 9], 5, 568446438), m = u(m, l, g, v, n[e + 14], 9, -1019803690), v = u(v, m, l, g, n[e + 3], 14, -187363961), g = u(g, v, m, l, n[e + 8], 20, 1163531501), l = u(l, g, v, m, n[e + 13], 5, -1444681467), m = u(m, l, g, v, n[e + 2], 9, -51403784), v = u(v, m, l, g, n[e + 7], 14, 1735328473), g = u(g, v, m, l, n[e + 12], 20, -1926607734), l = c(l, g, v, m, n[e + 5], 4, -378558), m = c(m, l, g, v, n[e + 8], 11, -2022574463), v = c(v, m, l, g, n[e + 11], 16, 1839030562), g = c(g, v, m, l, n[e + 14], 23, -35309556), l = c(l, g, v, m, n[e + 1], 4, -1530992060), m = c(m, l, g, v, n[e + 4], 11, 1272893353), v = c(v, m, l, g, n[e + 7], 16, -155497632), g = c(g, v, m, l, n[e + 10], 23, -1094730640), l = c(l, g, v, m, n[e + 13], 4, 681279174), m = c(m, l, g, v, n[e], 11, -358537222), v = c(v, m, l, g, n[e + 3], 16, -722521979), g = c(g, v, m, l, n[e + 6], 23, 76029189), l = c(l, g, v, m, n[e + 9], 4, -640364487), m = c(m, l, g, v, n[e + 12], 11, -421815835), v = c(v, m, l, g, n[e + 15], 16, 530742520), g = c(g, v, m, l, n[e + 2], 23, -995338651), l = f(l, g, v, m, n[e], 6, -198630844), m = f(m, l, g, v, n[e + 7], 10, 1126891415), v = f(v, m, l, g, n[e + 14], 15, -1416354905), g = f(g, v, m, l, n[e + 5], 21, -57434055), l = f(l, g, v, m, n[e + 12], 6, 1700485571), m = f(m, l, g, v, n[e + 3], 10, -1894986606), v = f(v, m, l, g, n[e + 10], 15, -1051523), g = f(g, v, m, l, n[e + 1], 21, -2054922799), l = f(l, g, v, m, n[e + 8], 6, 1873313359), m = f(m, l, g, v, n[e + 15], 10, -30611744), v = f(v, m, l, g, n[e + 6], 15, -1560198380), g = f(g, v, m, l, n[e + 13], 21, 1309151649), l = f(l, g, v, m, n[e + 4], 6, -145523070), m = f(m, l, g, v, n[e + 11], 10, -1120210379), v = f(v, m, l, g, n[e + 2], 15, 718787259), g = f(g, v, m, l, n[e + 9], 21, -343485551), l = t(l, i), g = t(g, a), v = t(v, h), m = t(m, d);
    return [l, g, v, m]
  }

  function a(n) {
    var t, r = "";
    for (t = 0; t < 32 * n.length; t += 8) r += String.fromCharCode(n[t >> 5] >>> t % 32 & 255);
    return r
  }

  function h(n) {
    var t, r = [];
    for (r[(n.length >> 2) - 1] = void 0, t = 0; t < r.length; t += 1) r[t] = 0;
    for (t = 0; t < 8 * n.length; t += 8) r[t >> 5] |= (255 & n.charCodeAt(t / 8)) << t % 32;
    return r
  }

  function d(n) {
    return a(i(h(n), 8 * n.length))
  }

  function l(n, t) {
    var r, e, o = h(n),
      u = [],
      c = [];
    for (u[15] = c[15] = void 0, o.length > 16 && (o = i(o, 8 * n.length)), r = 0; 16 > r; r += 1) u[r] = 909522486 ^ o[r], c[r] = 1549556828 ^ o[r];
    return e = i(u.concat(h(t)), 512 + 8 * t.length), a(i(c.concat(e), 640))
  }

  function g(n) {
    var t, r, e = "0123456789abcdef",
      o = "";
    for (r = 0; r < n.length; r += 1) t = n.charCodeAt(r), o += e.charAt(t >>> 4 & 15) + e.charAt(15 & t);
    return o
  }

  function v(n) {
    return unescape(encodeURIComponent(n))
  }

  function m(n) {
    return d(v(n))
  }

  function p(n) {
    return g(m(n))
  }

  function s(n, t) {
    return l(v(n), v(t))
  }

  function C(n, t) {
    return g(s(n, t))
  }

  function A(n, t, r) {
    return t ? r ? s(t, n) : C(t, n) : r ? m(n) : p(n)
  }

  return A(n);
}

module.exports = {
  isMoile: isMoile,
  hideMobile: hideMobile,
  isNumeric: isNumeric,
  isNullOrEmpty: isNullOrEmpty,
  formatDate: formatDate,
  evalPageCount: evalPageCount
}